US5030309A - Method for making cards, in particular memory cards - Google Patents

Method for making cards, in particular memory cards Download PDF

Info

Publication number
US5030309A
US5030309A US07/382,057 US38205789A US5030309A US 5030309 A US5030309 A US 5030309A US 38205789 A US38205789 A US 38205789A US 5030309 A US5030309 A US 5030309A
Authority
US
United States
Prior art keywords
card body
electronic module
mold
cavity
main faces
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US07/382,057
Inventor
Marc Brignet
Emile Droche
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Schlumberger SA
Original Assignee
Schlumberger SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=9339813&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=US5030309(A) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Schlumberger SA filed Critical Schlumberger SA
Application granted granted Critical
Publication of US5030309A publication Critical patent/US5030309A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K21/00—Information retrieval from punched cards designed for manual use or handling by machine; Apparatus for handling such cards, e.g. marking or correcting
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
    • G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
    • G06K19/067—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components
    • G06K19/07—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips
    • G06K19/077—Constructional details, e.g. mounting of circuits in the carrier
    • G06K19/0772—Physical layout of the record carrier
    • G06K19/07724—Physical layout of the record carrier the record carrier being at least partially made by a molding process
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17—Component parts, details or accessories; Auxiliary operations
    • B29C45/26—Moulds
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
    • G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
    • G06K19/067—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components
    • G06K19/07—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips
    • G06K19/077—Constructional details, e.g. mounting of circuits in the carrier
    • G06K19/07745—Mounting details of integrated circuit chips
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
    • H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
    • H01L21/04—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer
    • H01L21/50—Assembly of semiconductor devices using processes or apparatus not provided for in a single one of the groups H01L21/18 - H01L21/326 or H10D48/04 - H10D48/07 e.g. sealing of a cap to a base of a container
    • H01L21/56—Encapsulations, e.g. encapsulation layers, coatings
    • H01L21/565—Moulds
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2017/00—Carriers for sound or information
    • B29L2017/006—Memory cards, chip cards
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L2224/00—Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
    • H01L2224/01—Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
    • H01L2224/42—Wire connectors; Manufacturing methods related thereto
    • H01L2224/47—Structure, shape, material or disposition of the wire connectors after the connecting process
    • H01L2224/48—Structure, shape, material or disposition of the wire connectors after the connecting process of an individual wire connector
    • H01L2224/481—Disposition
    • H01L2224/48151—Connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive
    • H01L2224/48221—Connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive the body and the item being stacked
    • H01L2224/48225—Connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive the body and the item being stacked the item being non-metallic, e.g. insulating substrate with or without metallisation
    • H01L2224/48227—Connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive the body and the item being stacked the item being non-metallic, e.g. insulating substrate with or without metallisation connecting the wire to a bond pad of the item
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L2224/00—Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
    • H01L2224/01—Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
    • H01L2224/42—Wire connectors; Manufacturing methods related thereto
    • H01L2224/47—Structure, shape, material or disposition of the wire connectors after the connecting process
    • H01L2224/48—Structure, shape, material or disposition of the wire connectors after the connecting process of an individual wire connector
    • H01L2224/481—Disposition
    • H01L2224/48151—Connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive
    • H01L2224/48221—Connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive the body and the item being stacked
    • H01L2224/48225—Connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive the body and the item being stacked the item being non-metallic, e.g. insulating substrate with or without metallisation
    • H01L2224/48227—Connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive the body and the item being stacked the item being non-metallic, e.g. insulating substrate with or without metallisation connecting the wire to a bond pad of the item
    • H01L2224/48228—Connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive the body and the item being stacked the item being non-metallic, e.g. insulating substrate with or without metallisation connecting the wire to a bond pad of the item the bond pad being disposed in a recess of the surface of the item
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L2224/00—Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
    • H01L2224/73—Means for bonding being of different types provided for in two or more of groups H01L2224/10, H01L2224/18, H01L2224/26, H01L2224/34, H01L2224/42, H01L2224/50, H01L2224/63, H01L2224/71
    • H01L2224/732—Location after the connecting process
    • H01L2224/73251—Location after the connecting process on different surfaces
    • H01L2224/73265—Layer and wire connectors
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L2924/00—Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
    • H01L2924/01—Chemical elements
    • H01L2924/01014—Silicon [Si]
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L2924/00—Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
    • H01L2924/01—Chemical elements
    • H01L2924/01057—Lanthanum [La]
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L2924/00—Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
    • H01L2924/01—Chemical elements
    • H01L2924/01079—Gold [Au]

Definitions

  • the present invention relates to a method of making cards, and in particular cards including memory and particularly electronic memory.
  • Memory cards essentially comprise a card body which is generally made of a plastic material together with a memory module.
  • the memory module is an electronic module essentially comprising a semiconductor chip having an integrated circuit formed thereon together with a piece of printed circuit having the chip fixed thereto and serving to define external contact tabs.
  • the electronic module is fixed in the body of the card so that the electrical contact tabs are level with one of the main faces of the card body.
  • the card body is in the form of a rectangular parallelipiped having a thickness which must be less than 1 mm.
  • the edges of the card body serve as references for positioning the card in a card reader so that the contact tabs of the card come into electrical contact with a connector in the card reader.
  • the card body is made by hot rolling a plurality of sheets of plastic material such as PVC.
  • the electronic module is put into place in the stack of sheets of plastic material prior to rolling. After the rolling operation, the electronic module is solidly retained in the card body.
  • This method has the advantage of making the card body and implanting the electronic module therein in a single step. However, it is a difficult method and requires the periphery of the card body to be re-machined.
  • the second technique consists in making the card body in a first step, in machining a cavity in the card body to receive the electronic module, and in gluing the electronic module in the cavity.
  • the machining of such a card body is always a difficult operation and is therefore expensive because very accurate tolerances must be maintained, in particular to ensure that the electronic module is properly positioned relative to the edges of the card and relative to the main face of the card body with which the electrical contact tabs are to be level.
  • the card body must additionally satisfy other specifications concerning the quality of its surface state and concerning well-defined bending properties both longitudinally and trnasversely relative to the card body. In addition, the card body must not encourge the storage of electrostatic charge.
  • An aim of the present invention is to provide a method of making cards, in particular cards having an electronic memory, and in particular for making the card body in such a manner as to reduce the cost of making a card body while also simplifying the operation of fixing the electronic module in the card body and yet still satisfying the above-mentioned specifications.
  • the present invention provides a card-making method comprising the following steps:
  • a mold having a cavity which is substantially in the form of a rectangular parallelipiped with two substantially rectangular parallel main faces with the distance between said faces being about one millimeter;
  • plastic material being selected from the group comprising:
  • the card body is made by molding a plastic material by injection into a mold defining the two main faces of the card body, the edges of the card, and at least one cavity suitable for receiving a memory module and opening out into one of said main faces;
  • the memory module is put into place in said cavity
  • said memory module is fixed to the card body.
  • the memory module is preferably an electronic module comprising a semiconductor chip together with electrical contact tabs.
  • injection takes place through a mold face corresponding to one of the main faces of the card body and level with said cavity.
  • the material used for injection is an acrylonitrile butadiene styrene.
  • FIG. 1 is a plan view of a card body in accordance with the invention.
  • FIG. 1a is a detail view of FIG. 1 showing the cavity provided in the card body
  • FIG. 2 is a fragmentary section on line II--II of FIG. 1a;
  • FIG. 3 is a simplified horizontal section through a mold for making a card body in accordance with the invention.
  • FIG. 4 is a vertical section view through the FIG. 3 mold on line IV--IV;
  • FIG. 5 is a vertical section view through an electronic module for mounting on the card body of FIGS. 1 and 2;
  • FIGS. 6 and 7 show the printed circuit of the electronic module as seen from above and from below, respectively;
  • FIG. 8 is a fragmentary view of the card showing the electronic module implanted in the card body.
  • FIGS. 9a and 9b show an embodiment of the card body in which the memory module is magnetic.
  • FIGS. 1 and 2 there follows a description of one particular form of card body made in accordance with the invention.
  • the body 2 has the form of a rectangular parallelipiped with two main faces 4 and 6 which are generally rectangular in shape.
  • the dimensions of the main faces are approximately 85 mm (length L) by 55 mm (width 1).
  • the thickness of the card body is about 0.8 mm.
  • the card body also includes a cavity 8 which opens out into main face 4.
  • the cavity 8 has a constant depth of 0.25 mm and its dimensions in the plane of the main face 4 are 11 mm by 13 mm.
  • FIG. 1 shows that the cavity 8 includes eight studs 10 which project from its bottom 12.
  • the studs are disposed in two parallel lines.
  • FIG. 2 shows that each stud 10 comprises a base 14 having a diameter of 2 mm and a thickness of 0.05 mm, together with a terminal portion 16 of diameter 1 mm and of thickness 0.19 mm.
  • the card body is made by hot injection molding.
  • the plastic material used is an acryolonitrile butadiene styrene.
  • the material is injected into the mold at a temperature lying between 180° C. and preferably between 220° C. and 260° C., and the mold is maintained at a temperature lying between 5° C. and 100° C., and preferably between 10° C. and 50° C.
  • plastic materials could also be used, e.g. polystyrene, polypropylene, and polyamine 11, in which case the injection parameters will need changing.
  • the mold comprises a fixed front portion 20 and a moving rear portion 22.
  • the front portion 20 has a main face 20a which defines the main face 6 of the card body and a side wall 20b which defines the edge of the card.
  • the rear portion 22 has a face 22a which defines the second main face 4 of the card body.
  • a core 24 is mounted in the portion 22 and serves to make the cavity 8. The core therefore occupies the same position in the face 22a of the portion 22 as is occupied by the cavity 8 in the face 4 of the card body.
  • the face 24a of the core 24 defines the bottom 12 of the cavity and includes eight stepped hollows 26 which define the shape of the studs 10.
  • the face 20a includes a portion 28 which projects slightly and faces the core 24.
  • the injection channel 30 opens out into the projection 28. This channel opens out opposite the center of the face 24a of the core 24, i.e. opposite the center of the cavity 8.
  • the space between them defines the mold volume and thus the volume of the card.
  • the core 24 placed opposite the injection point is provided with a cooling system represented by cooling liquid flow duct 32.
  • the card body has good bending characteristics and its longitudinal dimension (L) and its transverse dimension (1) are good and satisfy the requirements of the ISO standard. More precisely, this standard requires that after 250 bending operations with a central offset of 5 mm when bending across the width and a central offset of 10 mm when bending along the length, the apparent width of the card should remain less than 0.94 mm.
  • the core 24 could be omitted providing the face 22a of mold portion 22 is machined in such a manner as to define itself a shape corresponding to the end 24a of the core. It should also be added that the method of the invention may be applied to making other shapes of card body, in particular bodies having different cavity shapes and different numbers of cavities. In a card body having a plurality of cavities, it may be advantageous to provide one injection point level with each cavity.
  • the card body may be embossed using conventional techniques.
  • the manufacturer is required to emboss personalizing information on one of the faces of the card.
  • the card body obtained in this way is capable of receiving a magnetic track and of being silk-screen printed with figures or text.
  • FIG. 5 shows an electronic module 40 which is to be implanted in the card body 2.
  • the electronic module essentially comprises a single sided printed circuit 42 and a semiconductor chip 44 having appropriate electronic circuits made thereon, and in particular having memory circuits.
  • the printed circuit 42 includes an insulating support 46 made of polyester with a layer of conductive material, typically copper, being disposed on one of the faces thereof. As can be seen better in FIG. 7, the insulating support 46 is pierced by a central window 50, by eight bonding holes 52 surrounding the central window 50, and by eight pre-fastening holes 54. The eight pre-fastening holes 54 occupy the same physical dispositions as the eight studs 10 of the card body and they are of very slightly larger diameter than the terminal portions 16 of the studs.
  • the layer of metallization 48 is etched so as to define:
  • each terminal 92 of the chip 44 is connected to a corresponding one of the contact points 74 to 88 by a conducting wire 94 whose opposite end passes through the corresponding bonding hole 52 and is bonded to the face of the contact point which closes the bottom of the bonding hole.
  • each terminal 92 of the semiconductor chip together with the rear face thereof is electrically connected to a contact tab.
  • the insulating support 46 is 150 microns thick and the metallization layer 48 is 50 microns thick. It may be observed that the thickness of the insulating support of the printed circuit is less than the height of the terminal portion 16 of each stud 10.
  • FIG. 8 shows the electronic module 40 implanted in the card body as made by molding.
  • a hole 100 is made which opens out firstly into the cavity 8 between the two lines of studs 10 (see the dashed line circle in FIG. 1a) and secondly into a hollow 102 provided in the face 6 of the card body by the projecting portion 28 of the injection mold.
  • the electronic module 40 is put into place in the cavity 8 of the body 2 in such a manner that the terminal portions 16 of the studs penetrate into the pre-fastening holes 54.
  • the face 48a of the printed circuit is not in contact with the bases 14 of the studs.
  • the space remaining is about 0.040 mm across.
  • the metallizations 48 over the prefastening holes 54 are heated.
  • the ends of the terminal portions 16 of the studs are deformed and expand as shown at 16a in FIG. 9. This gives rise to pre-fastening and positions the electronic module 40 on the card body 2.
  • the face 48a of the printed circuit 42 comes into contact with the bases 14 of the studs 10.
  • the card body can then be turned over in order to terminate fixing of the electronic module 40.
  • Glue is caused to penetrate through the hole 100, e.g. a hot setting epoxy glue (104) which fills the hole 100 together with the space left free between the bottom 12 of the cavity 8 and the printed circuit.
  • a hot setting epoxy glue (104) which fills the hole 100 together with the space left free between the bottom 12 of the cavity 8 and the printed circuit.
  • the module is finally gluded to the card body and the hole 100 is filled, thereby simultaneously providing the protective covering for the semiconductor chip 44 and its connection wires 94.
  • the hollow 102 it is possible to mill the face 104a of the glue deposit 104 without running the risk of spoiling the face 6 per se of the card body.
  • the above description relates more particularly to putting an electronic module of the type shown in FIG. 5 into place.
  • the method of the invention may be used to making electronic memory cards including other types of electronic modules.
  • the connection with the card reader could be provided by inductive coupling.
  • other forms of relief could be provided, on the condition that they can be made by molding. The method may also be implemented without making the hole 100.
  • the glue is inserted into the cavity through the front face of the electronic module, or else the glue is put onto the rear face of the printed circuit before the electronic module is put into place on the card body.
  • the memory module could be a magnetic memory component.
  • FIGS. 9a and 9b show the body of a card made in accordance with the invention and suitable for receiving a memory module constituted by a magnetic track.
  • the card body 120 has the same rectangular shape as the card body shown in FIG. 1 and the same outside dimensions. It includes two main faces 122 and 124 which are mutually parallel and it is 0.8 mm thick.
  • a cavity 126 running parallel to one of the long sides of the card is formed in the face 122 and said cavity extends over the entire length of the card. As seen better in FIG. 9b, cavity 126 has a uniform rectangular cross-section. The depth of the cavity is about 0.2 mm.
  • Such a card body 126 is obtained by molding in accordance with the above-described technique.
  • the only difference lies in the shape of the molding core which must be complementary to the shape of the cavity.
  • the plastic material injection duct opens out into the core defining the cavity.
  • the magnetic track is put into place in the cavity and is fixed to the card body either by gluing or by hot-rolling.

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • Power Engineering (AREA)
  • Credit Cards Or The Like (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)

Abstract

According to the invention the card body is made by molding a plastic material such as ABS. The mold (20, 22) includes a core (24) serving to define a cavity in the card body for the purpose of receiving a card electronic module.

Description

This application is a continuation of application Ser. No. 07/114,236, filed on Oct. 14, 1987, now abandoned, entitled A METHOD FOR MAKING CARDS, IN PARTICULAR MEMORY CARDS.
The present invention relates to a method of making cards, and in particular cards including memory and particularly electronic memory.
BACKGROUND OF THE INVENTION
Memory cards essentially comprise a card body which is generally made of a plastic material together with a memory module. In cards having an electronic memory, the memory module is an electronic module essentially comprising a semiconductor chip having an integrated circuit formed thereon together with a piece of printed circuit having the chip fixed thereto and serving to define external contact tabs. The electronic module is fixed in the body of the card so that the electrical contact tabs are level with one of the main faces of the card body.
The card body is in the form of a rectangular parallelipiped having a thickness which must be less than 1 mm. The edges of the card body serve as references for positioning the card in a card reader so that the contact tabs of the card come into electrical contact with a connector in the card reader.
Two main techniques are used for making the card body and for implanting the electronic module therein. In the first technique, the card body is made by hot rolling a plurality of sheets of plastic material such as PVC. The electronic module is put into place in the stack of sheets of plastic material prior to rolling. After the rolling operation, the electronic module is solidly retained in the card body. This method has the advantage of making the card body and implanting the electronic module therein in a single step. However, it is a difficult method and requires the periphery of the card body to be re-machined.
The second technique consists in making the card body in a first step, in machining a cavity in the card body to receive the electronic module, and in gluing the electronic module in the cavity. The machining of such a card body is always a difficult operation and is therefore expensive because very accurate tolerances must be maintained, in particular to ensure that the electronic module is properly positioned relative to the edges of the card and relative to the main face of the card body with which the electrical contact tabs are to be level.
It should also be added that the card body must additionally satisfy other specifications concerning the quality of its surface state and concerning well-defined bending properties both longitudinally and trnasversely relative to the card body. In addition, the card body must not encourge the storage of electrostatic charge.
An aim of the present invention is to provide a method of making cards, in particular cards having an electronic memory, and in particular for making the card body in such a manner as to reduce the cost of making a card body while also simplifying the operation of fixing the electronic module in the card body and yet still satisfying the above-mentioned specifications.
SUMMARY OF THE INVENTION
In order to achieve this aim, the present invention provides a card-making method comprising the following steps:
a mold is provided having a cavity which is substantially in the form of a rectangular parallelipiped with two substantially rectangular parallel main faces with the distance between said faces being about one millimeter;
a plastic material is injected into said cavity, said plastic material being selected from the group comprising:
acrylonitrile butadiene styrene, polystyrene, polypropylene, and polyamine 11; and
the part obtained in this way is unmolded.
The method of making a memory card comprising a memory module and a card body in the form of a rectangular parallelipiped is characterized in that it comprises the following steps:
the card body is made by molding a plastic material by injection into a mold defining the two main faces of the card body, the edges of the card, and at least one cavity suitable for receiving a memory module and opening out into one of said main faces;
after unmolding, the memory module is put into place in said cavity; and
said memory module is fixed to the card body.
The memory module is preferably an electronic module comprising a semiconductor chip together with electrical contact tabs.
In a preferred implementation, injection takes place through a mold face corresponding to one of the main faces of the card body and level with said cavity.
Also preferably, the material used for injection is an acrylonitrile butadiene styrene.
BRIEF DESCRIPTION OF THE DRAWINGS
The invention will be better understood from reading the following description of several implementations of the invention given by way of non-limiting example. The description refers to the accompanying drawings, in which;
FIG. 1 is a plan view of a card body in accordance with the invention;
FIG. 1a is a detail view of FIG. 1 showing the cavity provided in the card body;
FIG. 2 is a fragmentary section on line II--II of FIG. 1a;
FIG. 3 is a simplified horizontal section through a mold for making a card body in accordance with the invention;
FIG. 4 is a vertical section view through the FIG. 3 mold on line IV--IV;
FIG. 5 is a vertical section view through an electronic module for mounting on the card body of FIGS. 1 and 2;
FIGS. 6 and 7 show the printed circuit of the electronic module as seen from above and from below, respectively;
FIG. 8 is a fragmentary view of the card showing the electronic module implanted in the card body; and
FIGS. 9a and 9b show an embodiment of the card body in which the memory module is magnetic.
MORE DETAILED DESCRIPTION
With reference initially to FIGS. 1 and 2, there follows a description of one particular form of card body made in accordance with the invention.
The body 2 has the form of a rectangular parallelipiped with two main faces 4 and 6 which are generally rectangular in shape. The dimensions of the main faces are approximately 85 mm (length L) by 55 mm (width 1). The thickness of the card body is about 0.8 mm. As can be seen in FIG. 1, the card body also includes a cavity 8 which opens out into main face 4. The cavity 8 has a constant depth of 0.25 mm and its dimensions in the plane of the main face 4 are 11 mm by 13 mm.
FIG. 1 shows that the cavity 8 includes eight studs 10 which project from its bottom 12. The studs are disposed in two parallel lines.
FIG. 2 shows that each stud 10 comprises a base 14 having a diameter of 2 mm and a thickness of 0.05 mm, together with a terminal portion 16 of diameter 1 mm and of thickness 0.19 mm.
In accordance with the invention, the card body is made by hot injection molding. The plastic material used is an acryolonitrile butadiene styrene. The material is injected into the mold at a temperature lying between 180° C. and preferably between 220° C. and 260° C., and the mold is maintained at a temperature lying between 5° C. and 100° C., and preferably between 10° C. and 50° C.
Other plastic materials could also be used, e.g. polystyrene, polypropylene, and polyamine 11, in which case the injection parameters will need changing.
With reference to FIGS. 3 and 4, there follows a description in greater detail of an example of a mold for implementing the invention. The mold comprises a fixed front portion 20 and a moving rear portion 22. The front portion 20 has a main face 20a which defines the main face 6 of the card body and a side wall 20b which defines the edge of the card. The rear portion 22 has a face 22a which defines the second main face 4 of the card body. A core 24 is mounted in the portion 22 and serves to make the cavity 8. The core therefore occupies the same position in the face 22a of the portion 22 as is occupied by the cavity 8 in the face 4 of the card body. The face 24a of the core 24 defines the bottom 12 of the cavity and includes eight stepped hollows 26 which define the shape of the studs 10.
Returning to the portion 20, it can be seen that the face 20a includes a portion 28 which projects slightly and faces the core 24. The injection channel 30 opens out into the projection 28. This channel opens out opposite the center of the face 24a of the core 24, i.e. opposite the center of the cavity 8. Naturally, when the two portions 20 and 22 are fixed together, the space between them defines the mold volume and thus the volume of the card. It should be added that the core 24 placed opposite the injection point is provided with a cooling system represented by cooling liquid flow duct 32. Various tests have been performed and have shown that the above method makes it possible to obtain card bodies under highly satisfactory economic conditions while satisfying the above-mentioned specifications, in spite of the general shape of the part which is unfavorable for molding, in particular in spite of its thinness (0.8 mm).
In particular, by virtue of the particular injection technique, the card body has good bending characteristics and its longitudinal dimension (L) and its transverse dimension (1) are good and satisfy the requirements of the ISO standard. More precisely, this standard requires that after 250 bending operations with a central offset of 5 mm when bending across the width and a central offset of 10 mm when bending along the length, the apparent width of the card should remain less than 0.94 mm.
In addition, the advantages of the method in accordance with the invention appear clearly. The card body with the shape in particular of its cavity including the studs is obtained in a single operation and the position of the cavity relative to the edges is fully repeatable.
Returning to FIG. 3, it is obvious that the core 24 could be omitted providing the face 22a of mold portion 22 is machined in such a manner as to define itself a shape corresponding to the end 24a of the core. It should also be added that the method of the invention may be applied to making other shapes of card body, in particular bodies having different cavity shapes and different numbers of cavities. In a card body having a plurality of cavities, it may be advantageous to provide one injection point level with each cavity.
Another important advantage of the method in accordance with the invention is that the card body may be embossed using conventional techniques. In many card applications the manufacturer is required to emboss personalizing information on one of the faces of the card.
It must also be underlined that the card body obtained in this way is capable of receiving a magnetic track and of being silk-screen printed with figures or text.
There follows a description with reference to FIGS. 5 to 8 of the method of manufacturing an electronic memory card using a card body obtained by the molding method in accordance with the invention.
FIG. 5 shows an electronic module 40 which is to be implanted in the card body 2. The electronic module essentially comprises a single sided printed circuit 42 and a semiconductor chip 44 having appropriate electronic circuits made thereon, and in particular having memory circuits.
The printed circuit 42 includes an insulating support 46 made of polyester with a layer of conductive material, typically copper, being disposed on one of the faces thereof. As can be seen better in FIG. 7, the insulating support 46 is pierced by a central window 50, by eight bonding holes 52 surrounding the central window 50, and by eight pre-fastening holes 54. The eight pre-fastening holes 54 occupy the same physical dispositions as the eight studs 10 of the card body and they are of very slightly larger diameter than the terminal portions 16 of the studs.
With reference to FIG. 6, it can be seen that the layer of metallization 48 is etched so as to define:
(a) eight electrical contact tabs 56 to 70 which are disposed over the pre-fastening holes;
(b) nine electrical contact points 72 to 88 corresponding to the central window 50 and to the eight bonding holes 52; and
(c) conducting tracks for interconnecting each contact point to an electrical connection tab and also for connecting the central metallization 72 to contact point 74.
Returning to FIG. 5, it can be seen that the semiconductor chip 44 is placed in the central window 50 and is fixed on the central metallization 72 by a conductive glue 90. In addition, each terminal 92 of the chip 44 is connected to a corresponding one of the contact points 74 to 88 by a conducting wire 94 whose opposite end passes through the corresponding bonding hole 52 and is bonded to the face of the contact point which closes the bottom of the bonding hole. Thus, each terminal 92 of the semiconductor chip together with the rear face thereof is electrically connected to a contact tab.
The insulating support 46 is 150 microns thick and the metallization layer 48 is 50 microns thick. It may be observed that the thickness of the insulating support of the printed circuit is less than the height of the terminal portion 16 of each stud 10.
FIG. 8 shows the electronic module 40 implanted in the card body as made by molding.
In a prior step, a hole 100 is made which opens out firstly into the cavity 8 between the two lines of studs 10 (see the dashed line circle in FIG. 1a) and secondly into a hollow 102 provided in the face 6 of the card body by the projecting portion 28 of the injection mold.
The electronic module 40 is put into place in the cavity 8 of the body 2 in such a manner that the terminal portions 16 of the studs penetrate into the pre-fastening holes 54. The face 48a of the printed circuit is not in contact with the bases 14 of the studs. The space remaining is about 0.040 mm across.
In the following step, the metallizations 48 over the prefastening holes 54 are heated. As a result the ends of the terminal portions 16 of the studs are deformed and expand as shown at 16a in FIG. 9. This gives rise to pre-fastening and positions the electronic module 40 on the card body 2. In particular, the face 48a of the printed circuit 42 comes into contact with the bases 14 of the studs 10.
The card body can then be turned over in order to terminate fixing of the electronic module 40.
Glue is caused to penetrate through the hole 100, e.g. a hot setting epoxy glue (104) which fills the hole 100 together with the space left free between the bottom 12 of the cavity 8 and the printed circuit. As a result the module is finally gluded to the card body and the hole 100 is filled, thereby simultaneously providing the protective covering for the semiconductor chip 44 and its connection wires 94. By virtue of the hollow 102, it is possible to mill the face 104a of the glue deposit 104 without running the risk of spoiling the face 6 per se of the card body.
The above description relates more particularly to putting an electronic module of the type shown in FIG. 5 into place. However, it should be understood that the method of the invention may be used to making electronic memory cards including other types of electronic modules. In particular, instead of providing electrical connection tabs, the connection with the card reader could be provided by inductive coupling. Similarly, instead of having studs on the bottom of the cavity in order to position and pre-fasten the electronic module, other forms of relief could be provided, on the condition that they can be made by molding. The method may also be implemented without making the hole 100.
In this case, the glue is inserted into the cavity through the front face of the electronic module, or else the glue is put onto the rear face of the printed circuit before the electronic module is put into place on the card body. Finally, the memory module could be a magnetic memory component.
FIGS. 9a and 9b show the body of a card made in accordance with the invention and suitable for receiving a memory module constituted by a magnetic track. The card body 120 has the same rectangular shape as the card body shown in FIG. 1 and the same outside dimensions. It includes two main faces 122 and 124 which are mutually parallel and it is 0.8 mm thick. A cavity 126 running parallel to one of the long sides of the card is formed in the face 122 and said cavity extends over the entire length of the card. As seen better in FIG. 9b, cavity 126 has a uniform rectangular cross-section. The depth of the cavity is about 0.2 mm.
Such a card body 126 is obtained by molding in accordance with the above-described technique. The only difference lies in the shape of the molding core which must be complementary to the shape of the cavity. The plastic material injection duct opens out into the core defining the cavity.
The magnetic track is put into place in the cavity and is fixed to the card body either by gluing or by hot-rolling.

Claims (13)

We claim:
1. A method for making an electronic memory card comprising a card body which is substantially in the form of a rectangular parallelipiped having two main faces, said card body satisfying the requirements of the ISO standard regarding the dimensions of the card body and the bending properties of said card body, said card body containing an electronic module constituting a data medium, the method comprising the steps of:
(a) providing a mold having an inner mold volume limited by two parallel main faces substantially rectangular and an edge, said main faces being separated by a distance less than 1 mm, one of said main faces being provided with a projection for defining a cavity in the card body;
(b) injecting into said mold volume a thermoplastic material, for said plastic material to fill all of said mold volume to form the entire card body therewith;
(c) unmolding the card body so obtained;
(d) providing an electronic module; and
(e) fixing said electronic module into the cavity produced by the projection on said one of said main faces of said mold.
2. The method according to claim 1, wherein said main face of the mold volume has a width of about 55 mm and a length of about 85 mm, and the distance between said two main faces is approximately 0.8 mm.
3. The method according to claim 1 wherein said plastic material is injected into said mold volume through an injection hole located in one of said main faces of said mold.
4. The method according to claim 3 wherein said injection hole is located in the part of the main face remote from said projection.
5. The method according to claim 1 wherein said thermoplastic material is an acrylonitrile butadiene styrene which is injected at a temperature lying between 220 degrees Centigrade and 260 degrees Centigrade, and the mold is kept at a temperature lying between 10 degrees Centigrade and 50 degrees Centigrade.
6. A method of making an electronic memory card comprising a card body having bending properties satisfying the requirements of the ISO standard and an electronic module constituting a data medium, the method comprising the steps of:
(a) providing a mold having a mold volume limited by two parallel main faces substantially rectangular in shape and an edge, said main faces having a width of about 55 mm and a length of about 85 mm, the distance separating said two main faces being approximately 0.8 mm, one of said main faces being provided with an extension for defining a cavity in the card body;
(b) injecting an acrylonitrile butadiene styrene (ABS) to fill all of said mold volume to form the entire card body therewith;
(c) unmolding the card body so obtained;
(d) providing an electronic module comprising an insulating support having electrical contact tabs on one of its two faces and a semiconductor chip fixed on the other face of said insulating support; and
(e) placing said electronic module within said cavity and fixing said electronic module to said card body.
7. The method according to claim 6, wherein, after said electronic module has been fixed in place, symbols are embossed on the card body.
8. The method according to claim 6, wherein after said module has been fixed in place, a magnetic track is affixed to the main face of said card body.
9. The method according to claim 6, wherein said electronic module includes a printed circuit component comprising an insulating support having a plurality of holes therethrough together with metallization to define said electrical contact tabs, said metallization closing one end of each of said holes, and wherein a plurality of studs projecting into said cavity are formed when the card body is made by injection molding, with the diameter of such studs being smaller than the diameter of said holes, placing the electronic module into said cavity with said studs on the card body penetrating, respectively, into said holes through the insulating support, and heating said electronic module locally to soften and crush the ends of said studs so that the crushed stud ends spread to engage the periphery of the holes, thereby fastening the electronic module to the card body.
10. A method of making an electronic memory card having dimensional bending properties satisfying the requirements of the ISO standard and an electronic module fastened within a cavity formed in said card body, comprising the steps of:
providing a mold having an inner mold volume limited by two parallel main faces substantially rectangular and an edge, said main faces being separated by a distance less than 1 mm,
providing a projection on one of said two main faces for defining said cavity in the card body,
providing an injection point on the other of said two main faces, said injection point being opposite said projection,
injecting into the mold through said injection point a thermoplastic material to fill said mold volume, thereby forming said card body,
unmolding the card body from said mold, and
fastening said electronic module into the cavity of said card body.
11. The method of claim 10, further comprising the steps of providing said projection with hollows to define studs extending from a bottom of said cavity in the card body.
12. The method of claim 10, wherein the steps of providing a projection on one of said two main faces comprises providing a core.
13. The method of claim 12, further comprising the step of cooling said core.
US07/382,057 1986-10-14 1989-07-14 Method for making cards, in particular memory cards Expired - Lifetime US5030309A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR86-14231 1986-10-14
FR8614231A FR2605144B1 (en) 1986-10-14 1986-10-14 PROCESS FOR PRODUCING CARDS WITH ELECTRONIC MEMORY AND CARDS OBTAINED BY IMPLEMENTING SAID METHOD

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
US07114236 Continuation 1987-10-14

Publications (1)

Publication Number Publication Date
US5030309A true US5030309A (en) 1991-07-09

Family

ID=9339813

Family Applications (1)

Application Number Title Priority Date Filing Date
US07/382,057 Expired - Lifetime US5030309A (en) 1986-10-14 1989-07-14 Method for making cards, in particular memory cards

Country Status (17)

Country Link
US (1) US5030309A (en)
EP (1) EP0267826B1 (en)
JP (1) JP2524606B2 (en)
KR (1) KR950007894B1 (en)
AR (1) AR243696A1 (en)
AT (1) ATE73561T1 (en)
AU (1) AU603142B2 (en)
BR (1) BR8705434A (en)
DE (1) DE3777336D1 (en)
DK (1) DK537387A (en)
ES (1) ES2030751T3 (en)
FI (1) FI94000C (en)
FR (1) FR2605144B1 (en)
GR (1) GR3004726T3 (en)
IN (1) IN169843B (en)
NO (1) NO174605C (en)
ZA (1) ZA877497B (en)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5348460A (en) * 1991-12-20 1994-09-20 Gao Gesellschaft Fur Automation And Organisation Mbh Apparatus for producing flat plastic moldings, for example identity cards
US5387306A (en) * 1988-06-21 1995-02-07 Gec Avery Limited Manufacturing integrated circuit cards
US5476629A (en) * 1992-12-25 1995-12-19 Citizen Watch Co. Ltd. Method for manufacturing IC card substrate
US5510074A (en) * 1993-02-23 1996-04-23 Schlumberger Industries Method for manufacturing smart cards
US5871683A (en) * 1994-01-18 1999-02-16 First Team Sports, Inc. Method of molding skate components
EP0917100A2 (en) * 1997-11-13 1999-05-19 ODS Landis & Gyr GmbH & Co. KG Method for fabricating a flat card substrate for an IC card
US5935497A (en) * 1995-06-21 1999-08-10 Schlumberger Industries Method of printing a graphic on a memory card
US6435415B1 (en) * 1996-12-11 2002-08-20 Schlumberger Systemes Contactless electronic memory card
US7168623B1 (en) * 1998-10-23 2007-01-30 Stmicroelectronics S.A. Self-adhesive electronic circuit
US20190091904A1 (en) * 2015-10-14 2019-03-28 Capital One Services, Llc Molded pocket in transaction card construction

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2629236B1 (en) * 1988-03-22 1991-09-27 Schlumberger Ind Sa PROCESS FOR REALIZING AN ELECTRONIC MEMORY CARD AND CARD AS OBTAINED BY IMPLEMENTING SAID METHOD
US4961893A (en) * 1988-04-28 1990-10-09 Schlumberger Industries Method for manufacturing memory cards
JP2730181B2 (en) * 1989-05-27 1998-03-25 三菱化学株式会社 Manufacturing method of IC card substrate
FR2650530B1 (en) * 1989-08-07 1991-11-29 Schlumberger Ind Sa METHOD FOR REALIZING CARD BODIES WITH GRAPHICS
FR2668096B1 (en) * 1990-10-19 1993-01-22 Schlumberger Ind Sa METHOD FOR MANUFACTURING A MEMORY CARD CAPABLE OF RECEIVING A PHOTOGRAPHIC IMAGE AND CARD THUS OBTAINED.
JPH05169885A (en) * 1991-12-26 1993-07-09 Mitsubishi Electric Corp Thin ic card
US5475919B1 (en) * 1994-10-07 2000-10-17 Three View Technology Co Ltd Pcmcia card manufacturing process
DE69511359T2 (en) † 1994-11-14 2000-03-02 Mitsubishi Plastics, Inc. Plastic compositions and the plastic cards made from them
DE19824699B4 (en) * 1998-06-03 2004-01-15 Orga Kartensysteme Gmbh Process for the production of a plastic card

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4500777A (en) * 1981-02-27 1985-02-19 Drexler Technology Corporation High data capacity, scratch and dust resistant, infrared, read-write data card for automatic teller machines
JPS6115289A (en) * 1984-06-29 1986-01-23 Mitsubishi Plastics Ind Ltd Memory card
JPS61133489A (en) * 1984-12-03 1986-06-20 Mitsubishi Plastics Ind Ltd Memory card
JPS61183791A (en) * 1985-02-08 1986-08-16 Mitsubishi Plastics Ind Ltd Memory card
US4687231A (en) * 1984-12-20 1987-08-18 George Hartmann Gmbh & Co. Kg Identification card readable by a magnetic system

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3553787A (en) * 1968-07-18 1971-01-12 Moore Business Forms Inc Apparatus for embossing alpha-numeric characters
NL7511123A (en) * 1975-09-19 1977-03-22 Picanol Nv IMPROVED DRAWER FOR WEAVING MACHINES.
FR2520541A1 (en) * 1982-01-22 1983-07-29 Flonic Sa Mounting assembly for memory integrated circuit in bank card - comprises flexible film support carrying metallic connecting pads for chip connections
FR2579799B1 (en) * 1985-03-28 1990-06-22 Flonic Sa METHOD FOR MANUFACTURING ELECTRONIC MEMORY CARDS AND CARDS OBTAINED ACCORDING TO SAID METHOD
JPH0662026B2 (en) * 1985-04-22 1994-08-17 三菱樹脂株式会社 IC memory card

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4500777A (en) * 1981-02-27 1985-02-19 Drexler Technology Corporation High data capacity, scratch and dust resistant, infrared, read-write data card for automatic teller machines
US4500777B1 (en) * 1981-02-27 1992-11-24 Drexler Tech
JPS6115289A (en) * 1984-06-29 1986-01-23 Mitsubishi Plastics Ind Ltd Memory card
JPS61133489A (en) * 1984-12-03 1986-06-20 Mitsubishi Plastics Ind Ltd Memory card
US4687231A (en) * 1984-12-20 1987-08-18 George Hartmann Gmbh & Co. Kg Identification card readable by a magnetic system
JPS61183791A (en) * 1985-02-08 1986-08-16 Mitsubishi Plastics Ind Ltd Memory card

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
Saechtling, "Kunststoff Taschenbuch", 22nd edition, published by Hauser.
Saechtling, Kunststoff Taschenbuch , 22nd edition, published by Hauser. *

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5387306A (en) * 1988-06-21 1995-02-07 Gec Avery Limited Manufacturing integrated circuit cards
US5348460A (en) * 1991-12-20 1994-09-20 Gao Gesellschaft Fur Automation And Organisation Mbh Apparatus for producing flat plastic moldings, for example identity cards
US5476629A (en) * 1992-12-25 1995-12-19 Citizen Watch Co. Ltd. Method for manufacturing IC card substrate
US5510074A (en) * 1993-02-23 1996-04-23 Schlumberger Industries Method for manufacturing smart cards
US5871683A (en) * 1994-01-18 1999-02-16 First Team Sports, Inc. Method of molding skate components
US5935497A (en) * 1995-06-21 1999-08-10 Schlumberger Industries Method of printing a graphic on a memory card
US6435415B1 (en) * 1996-12-11 2002-08-20 Schlumberger Systemes Contactless electronic memory card
EP0917100A2 (en) * 1997-11-13 1999-05-19 ODS Landis & Gyr GmbH & Co. KG Method for fabricating a flat card substrate for an IC card
EP0917100A3 (en) * 1997-11-13 1999-05-26 ODS Landis & Gyr GmbH & Co. KG Method for fabricating a flat card substrate for an IC card
US7168623B1 (en) * 1998-10-23 2007-01-30 Stmicroelectronics S.A. Self-adhesive electronic circuit
US20190091904A1 (en) * 2015-10-14 2019-03-28 Capital One Services, Llc Molded pocket in transaction card construction
US11034065B2 (en) 2015-10-14 2021-06-15 Capital One Services, Llc Molded pocket in transaction card construction

Also Published As

Publication number Publication date
BR8705434A (en) 1988-05-24
ES2030751T3 (en) 1992-11-16
DE3777336D1 (en) 1992-04-16
IN169843B (en) 1991-12-28
JPS63183893A (en) 1988-07-29
JP2524606B2 (en) 1996-08-14
FI874481A0 (en) 1987-10-12
AU603142B2 (en) 1990-11-08
FR2605144A1 (en) 1988-04-15
KR950007894B1 (en) 1995-07-21
NO874273D0 (en) 1987-10-13
DK537387D0 (en) 1987-10-14
DK537387A (en) 1988-04-15
GR3004726T3 (en) 1993-04-28
FI94000C (en) 1995-06-26
FI94000B (en) 1995-03-15
AU7938087A (en) 1988-04-21
KR880005541A (en) 1988-06-29
AR243696A1 (en) 1993-08-31
FR2605144B1 (en) 1989-02-24
EP0267826A1 (en) 1988-05-18
NO174605C (en) 1994-06-08
EP0267826B1 (en) 1992-03-11
FI874481A (en) 1988-04-15
ZA877497B (en) 1988-04-14
NO874273L (en) 1988-04-15
ATE73561T1 (en) 1992-03-15
NO174605B (en) 1994-02-21

Similar Documents

Publication Publication Date Title
US5030309A (en) Method for making cards, in particular memory cards
US4961893A (en) Method for manufacturing memory cards
US4996411A (en) Method of manufacturing a card having electronic memory and a card obtained by performing said method
EP0377937B1 (en) IC card
US5057460A (en) Method of making an electronic module, for insertion into an electronic memory-card body
AU600785B2 (en) A method of making memory cards, and cards obtained by implementing said method
US5041395A (en) Method of encapsulating an integrated circuit using a punched metal grid attached to a perforated dielectric strip
US5996897A (en) Data carrier having a module including a component and having a coil, and method of manufacturing such a data carrier
JP3095762B2 (en) Method for producing a microchip card incorporating a microprocessor chip and a microchip card produced by this method
US5671525A (en) Method of manufacturing a hybrid chip card
US4737620A (en) Method of manufacturing cards having an electronic memory and cards obtained by performing said method
US6013945A (en) Electronic module for data cards
JP2002535784A (en) Micro module combined with chip card with loop antenna
JPH08340080A (en) Half finishing article
JP2604340B2 (en) Integrated circuit sealing method for IC card
US5969415A (en) Data carrier with a component-containing module and with a coil, method of producing such a data carrier and module therefor
US5913110A (en) Method for producing a plastic material composite component, a plastic material composite component and a mold for injection molding same
EP1346316B1 (en) Electronic data storage medium
US6081025A (en) Data carrier with a component-containing module and with a coil, method of producing such a data carrier and module therefor
CA1294095C (en) Method of making cards, in particular memory cards
WO2004023386A1 (en) Combination-type ic card and method of manufacturing the combination-type ic card
JP2524606C (en)
JPH10247232A (en) Semiconductor device and its manufacture
JPS62220397A (en) Integrated circuit card
JPS6362239A (en) Manufacture of semiconductor device enclosed in plastic capsule

Legal Events

Date Code Title Description
STCF Information on status: patent grant

Free format text: PATENTED CASE

FEPP Fee payment procedure

Free format text: PAYOR NUMBER ASSIGNED (ORIGINAL EVENT CODE: ASPN); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY

FEPP Fee payment procedure

Free format text: PAYOR NUMBER ASSIGNED (ORIGINAL EVENT CODE: ASPN); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY

Free format text: PAYER NUMBER DE-ASSIGNED (ORIGINAL EVENT CODE: RMPN); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY

FPAY Fee payment

Year of fee payment: 4

FEPP Fee payment procedure

Free format text: PAYOR NUMBER ASSIGNED (ORIGINAL EVENT CODE: ASPN); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY

Free format text: PAYER NUMBER DE-ASSIGNED (ORIGINAL EVENT CODE: RMPN); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY

FEPP Fee payment procedure

Free format text: PAYER NUMBER DE-ASSIGNED (ORIGINAL EVENT CODE: RMPN); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY

Free format text: PAYOR NUMBER ASSIGNED (ORIGINAL EVENT CODE: ASPN); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY

FEPP Fee payment procedure

Free format text: PAYER NUMBER DE-ASSIGNED (ORIGINAL EVENT CODE: RMPN); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY

Free format text: PAYOR NUMBER ASSIGNED (ORIGINAL EVENT CODE: ASPN); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY

FPAY Fee payment

Year of fee payment: 8

FPAY Fee payment

Year of fee payment: 12